| FideId | Nafn | RatingStd | +- | Flokkur | Kyn | Félag | Club id | Virkur |
|---|---|---|---|---|---|---|---|---|
| 2301075 | Jón Árni Halldórsson | 2014 | 23 | S50 | Karl | Fjölnir | 3 | ✔ |
| 2302101 | Jón Árni Jónsson | 2044 | S50 | Karl | SA | 16 | ✘ | |
| 2304350 | Jón Árni Sveinsson | 0 | S65 | Karl | Breiðablik | 27 | ✔ | |
| 2308096 | Jón Ásgeir Tryggvason | 0 | S65 | Karl | TG | 28 | ✔ | |
| N/A | Jón Áskell Þorbjarnarson | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón B Hermannsson | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Baldur Lorange | 0 | S50 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Baldursson | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| 2310570 | Jón Baldursson | 0 | S65 | Karl | Vinaskákfélagið | 19 | ✔ | |
| N/A | Jón Baldvin Hannesson | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Benjamín Sverrisson | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Birgir Ármannsson | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| 2307197 | Jón Birgir Einarsson | 1832 | S50 | Karl | Vinaskákfélagið | 19 | ✘ | |
| N/A | Jón Birkir Jónsson | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Bjarnason | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| 2318695 | Jón Björn Margrétarson | 1412 | U16 | Karl | TR | 30 | ✘ | |
| 2301539 | Jón Björnsson | 1501 | S65 | Karl | KR | 12 | ✘ | |
| N/A | Jón Bragi Bergmann | 0 | S50 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Bragi Gunnlaugsson | 0 | S65 | Karl | 64 Mislyndir Biskupar | 52 | ✔ | |
| 2324636 | Jón Bragi Þórisson | 1552 | U20 | Karl | Utan félaga | 51 | ✘ | |
| 2329360 | Jón Brandsson | 0 | S50 | Karl | FH-skák | 50 | ✔ | |
| 2318490 | Jón Brynjar Ólafsson | 0 | 21-49 | Karl | TV | 32 | ✔ | |
| 2306301 | Jón Eðvald Guðfinnsson | 0 | S65 | Karl | Breiðablik | 27 | ✔ | |
| 2311569 | Jón Eggert Hallsson | 1840 | 11 | 21-49 | Karl | TG | 28 | ✔ |
| 2305674 | Jón Einar Karlsson | 1738 | S50 | Karl | Vinaskákfélagið | 19 | ✘ | |
| 2330555 | Jón Elías Óskarsson | 1693 | 1 | U16 | Karl | Haukar | 5 | ✔ |
| 2334020 | Jón Elli Bjarkason | 1438 | 34 | U16 | Karl | Utan félaga | 51 | ✔ |
| N/A | Jón Emil Steinrímsson | 0 | U20 | Karl | Fjölnir | 3 | ✘ | |
| 2311640 | Jón Eysteinsson | 0 | S50 | Karl | TG | 28 | ✔ | |
| 2323010 | Jón F Hjartar | 0 | 21-49 | Karl | TG | 28 | ✔ | |
| 2335352 | Jón Fenrir Ragnarsson | 1490 | U8 | Karl | KR | 12 | ✔ | |
| 2321009 | Jón Fjörnir Thoroddsen | 0 | S50 | Karl | Víkingaklúbburinn | 37 | ✔ | |
| N/A | Jón Forni Snæbjörnsson | 0 | 21-49 | Karl | UMFL | 33 | ✔ | |
| 2304856 | Jón G Briem | 0 | S65 | Karl | KR | 12 | ✔ | |
| 2307227 | Jón G Friðjónsson | 0 | S65 | Karl | KR | 12 | ✔ | |
| N/A | Jón G Kristjánsson | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| 2300478 | Jón G Viðarsson | 2308 | S50 | Karl | SA | 16 | ✘ | |
| N/A | Jón G Vilhelmsson | 0 | S50 | Karl | Utan félaga | 51 | ✘ | |
| 2309629 | Jón Gauti Magnússon | 0 | S50 | Karl | Vinaskákfélagið | 19 | ✔ | |
| N/A | Jón Guðnason | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| 2307073 | Jón Gunnar Jónsson | 0 | S50 | Karl | TR | 30 | ✔ | |
| N/A | Jón Gunnar Ottósson | 0 | S65 | Karl | SSON | 25 | ✘ | |
| N/A | Jón Gunnar Pálsson | 0 | S65 | Karl | Utan félaga | 51 | ✘ | |
| 2326442 | Jón Hafsteinn Jóhannsson | 0 | 21-49 | Karl | Goðinn | 48 | ✔ | |
| N/A | Jón Halldór Sigurbjörnsson | 0 | 21-49 | Karl | TG | 28 | ✘ | |
| 2304074 | Jón Hákon Richter | 0 | 21-49 | Karl | Haukar | 5 | ✔ | |
| N/A | Jón Hákonarsson | 0 | S65 | Karl | KR | 12 | ✘ | |
| 2301830 | Jón Hálfdánarson | 2116 | S65 | Karl | TG | 28 | ✘ | |
| N/A | Jón Helgi Reykjalín | 0 | 21-49 | Karl | Utan félaga | 51 | ✘ | |
| N/A | Jón Helgi Þórisson | 0 | S50 | Karl | Utan félaga | 51 | ✘ |